“…A lighted stylet is inserted into the suction channel of the LTS-II and correct placement of the LTS II is confirmed by observing a diffuse dim glow in the anterior neck at the level of the tracheal cartilage. 4 Some concerns with this approach include: the risk of trauma to the airway if the lighted stylet accidentally protrudes from the distal end of the LTS II during advancement; the diffuse dim glow can be obscured because light has to traverse the walls of the esophagus, trachea, and soft tissues of the neck; and, correct LTS II position cannot be assured because the anterior neck glow is an imprecise end point for correct supraglottic placement of the LTS II's ventilation outlets. Unfortunately, this method is unsuitable for standard King LT-Ds that do not have a suction channel.…”